> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metabind.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# CustomFont

> Loads a custom font from a URL for use with the .font() modifier.

export const PlatformStatuses = ({statuses}) => {
  const StatusBadge = ({status, label}) => {
    const styles = {
      green: {
        backgroundColor: '#dcfce7',
        color: '#166534'
      },
      orange: {
        backgroundColor: '#fed7aa',
        color: '#9a3412'
      },
      red: {
        backgroundColor: '#fecaca',
        color: '#991b1b'
      },
      gray: {
        backgroundColor: '#f3f4f6',
        color: '#4b5563'
      }
    };
    const baseStyle = {
      display: 'inline-flex',
      alignItems: 'center',
      padding: '0.125rem 0.625rem',
      borderRadius: '9999px',
      fontSize: '0.875rem',
      fontWeight: '500'
    };
    const colorStyle = styles[status] || styles.green;
    return <span style={{
      ...baseStyle,
      ...colorStyle
    }}>
        {label || status}
      </span>;
  };
  const STATUS_CONFIG = {
    supported: {
      label: "Supported",
      color: "green"
    },
    partial: {
      label: "Partial",
      color: "orange"
    },
    "not-implemented": {
      label: "Not Implemented",
      color: "gray"
    }
  };
  const renderCard = (platform, value) => {
    if (!value) return null;
    const {status, note} = typeof value === "string" ? {
      status: value
    } : value;
    const config = STATUS_CONFIG[status];
    if (!config) return null;
    const titleMap = {
      ios: "SwiftUI",
      android: "Jetpack Compose",
      web: "Web"
    };
    return <Card key={platform} title={titleMap[platform] || platform}>
          <StatusBadge status={config.color} label={config.label} />
          {note && <div style={{
      marginTop: '0.5rem',
      fontSize: '0.875rem',
      color: '#6b7280'
    }}>
              {note}
            </div>}
      </Card>;
  };
  if (statuses == null) {
    return null;
  }
  return <Columns cols="3">
      {Object.entries(statuses).map(([platform, value]) => renderCard(platform, value))}
    </Columns>;
};

export const ComposeJS = ({code, name, height}) => {
  const encodedCode = useMemo(() => {
    if (!code) return "";
    try {
      return btoa(code);
    } catch (e) {
      console.error("Failed to encode code", e);
      return "";
    }
  }, [code]);
  if (!encodedCode) {
    return null;
  }
  return <iframe src={`https://www.metabind.ai/embed?code=${encodedCode}&name=${name ?? 'Example'}`} loading="lazy" style={{
    width: "100%",
    height: height || '350px',
    border: "1px solid #e5e7eb",
    borderRadius: "var(--rounded-2xl,1rem)",
    overflow: "hidden"
  }} title="ComposeJS Preview" />;
};

```typescript theme={null}
CustomFont(props?: CustomFontProps): FontComponent;
```

```typescript theme={null}
type CustomFontProps = {
    url: string;
    family: string;
    size: number;
    relativeToTextStyle?: string;
};
```

<ParamField path="url" type="string" required>
  URL to the font file. Supports `.ttf` and `.otf` formats.
</ParamField>

<ParamField path="family" type="string" required>
  The font family name, as defined in the font file metadata.
</ParamField>

<ParamField path="size" type="number" required>
  Font size in points.
</ParamField>

<ParamField path="relativeToTextStyle" type="string" optional>
  A semantic text style (e.g. `"body"`, `"headline"`) to scale the font size relative to for Dynamic Type support. When set, the font scales with the user's accessibility text size preference.
</ParamField>

## Support

<PlatformStatuses
  statuses={{
ios: { status: "supported" },
android: "not-implemented",
web: "not-implemented",
}}
/>

## Usage

### Basic custom font

```typescript theme={null}
Text("Custom styled text")
    .font(CustomFont({
        url: "https://example.com/fonts/Inter-Regular.otf",
        family: "Inter",
        size: 18
    }))
```

### With Dynamic Type scaling

```typescript theme={null}
Text("Accessible custom font")
    .font(CustomFont({
        url: "https://example.com/fonts/Inter-Regular.otf",
        family: "Inter",
        size: 16,
        relativeToTextStyle: "body"
    }))
```

### Multiple weights

```typescript theme={null}
VStack({ spacing: 8 }, [
    Text("Heading")
        .font(CustomFont({
            url: "https://example.com/fonts/Inter-Bold.otf",
            family: "Inter",
            size: 24
        })),
    Text("Body text content here")
        .font(CustomFont({
            url: "https://example.com/fonts/Inter-Regular.otf",
            family: "Inter",
            size: 16,
            relativeToTextStyle: "body"
        }))
])
```

## Notes

* The font file must be accessible from the provided URL at runtime.
* Supported formats are `.ttf` and `.otf`.
* `CustomFont` returns a `FontComponent` that is passed to the `.font()` modifier, not used as a standalone view.
* When `relativeToTextStyle` is set, the font size scales with the user's Dynamic Type preference, providing accessibility support.

## See Also

* [Text](/bindjs/components/Text) -- text display